On Wed, 18 Feb 2009 18:38:04 +0000 James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote: > On Wed, 2009-02-18 at 10:04 -0800, Andrew Morton wrote: > > On Wed, 18 Feb 2009 04:27:28 -0800 (PST) david@xxxxxxx wrote: > > > > > On Wed, 18 Feb 2009, Matthew Wilcox wrote: > > > > > > > On Tue, Feb 17, 2009 at 08:40:09PM -0800, Yinghai Lu wrote: > > > >> > > > >> Impact: workaround BIOS that doesn't enable that bit > > > >> > > > >> David reported that LSI sas doesn't work with MSI. > > > >> it turns out that BIOS doesn't enable HT MSI > > > >> 8132 does support HT MSI. > > > >> add quirk to enable it > > > >> > > > >> Reported-by: David Lang <david@xxxxxxx> > > > >> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx> > > > > > > > > Reviewed-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx> > > > > > > > > Jesse, I think this should go into Linus' tree sooner rather than later. > > > > > > please forward to -stable as well. this is a regression since the card > > > works with older kernels. > > > > > > > Which kernel version introduced the regression? > > Technically, it's not a regression. The MSI problem has always been > there, it was just exposed when the SAS card switched to using MSI by > default. It's fixed by the bridge quirk ... of course it's unclear how > many more bridges with problems there are. > > > Do we not need mpt-fix-enable-lsi-sas-to-use-msi-as-default.patch as > > well, to fix this regression? > > No ... it's a separate issue. MSI was enabled for fusion SAS in 2.6.26; > the problem msi patch which the above corrects actually has the effect > of disabling MSI for fusion and went into 2.6.29-rc2, which isn't a > kernel that's been tested here. <scratches head> So it should be the case that _either_ of mpt-fix-enable-lsi-sas-to-use-msi-as-default.patch and pci-enable-msi-on-8132.patch would fix David's machine? -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
